The K Tool International 72138 digital torque adapter converts any 1/2 inch drive ratchet into a digital torque tool. It provides static torque measurement and features three standard functions: torque setting, measurement setting, and mode setting. The adapter operates in both clockwise and counter clockwise directions and offers a torque range of 29.5 to 147.5 ft lbs. Ideal for automotive and mechanical applications, it delivers accurate torque readings for critical fastening tasks.